HID: multitouch: do not map usage from non used reports

hid-multitouch only handles touch events, so there is no point in
mapping other kind of events.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 35b6025a064f691200135d13f80d475483c94b74..611c88cbc40e6dd1998c37c20e9b7d68875bdfca 100644 (file)
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -741,7 +741,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
        * such as Mouse that might have the same GenericDesktop usages. */
        if (field->application != HID_DG_TOUCHSCREEN &&
            field->application != HID_DG_TOUCHPAD)
-               return 0;
+               return -1;
 
        /* eGalax devices provide a Digitizer.Stylus input which overrides
         * the correct Digitizers.Finger X/Y ranges.